From a psychological point of view. I find it educational and important. Not emotional but factual.
I suppose some people, prefer to exclude themselves from such topic as to not confront themselves with such horror and grief. To try and protect themselves from these atrocities. Perhaps because they might feel as if they won't be able to live a happy, and safe life. The thought of it potentially happening anywhere. That we have the capability to wipe anyone out of existance in the blink of an eye. Might weigh so much on a person's shoulders that for them it is best to forget these things happen as much as possible. To prevent themselves from thinking about it. So they do not need to deal with such information in their daily lives. Putting up an emotional protective shell.
I'm not saying that is a wrong thing to do. I'm sure for some people that is probably the best course of action. In the end, everyone deserves a chance to live a happy life. But for me that wouldn't work. I want to be confronted by this. I want to learn from this. I want to know humanity's potential and I am not afraid to sample this. For good or bad. It's a most intruiging subject for me personally.
I think that's the best I can explain on my psychological aspect as well as my assumption on the psychological aspect for those who don't feel comfortable or avoid thesr topics.